Sharp 27SC260R, Service Manual

SHARP CORPORATION

This document has been published to be used for after
sales service only.
The contents are subject to change without notice.

In the interests of user-safety (Required by safety regulations in some countries ) the set should be restored to its
original condition and only parts identical to those specified should be used.

Page

»

 ELECTRICAL SPECIFICATIONS ......................................................................................................... 1

»

 IMPORTANT SERVICE SAFETY PRECAUTION ................................................................................. 2

»

 LOCATION OF USER'S CONTROL ..................................................................................................... 4

»

 INSTALLATION AND SERVICE INSTRUCTIONS ................................................................................ 5

»

 SERVICE ADJUSTMENT ..................................................................................................................... 9

»

 CHASSIS LAYOUT ............................................................................................................................. 12

»

 BLOCK DIAGRAM .............................................................................................................................. 13

»

 DESCRIPTION OF SCHEMATIC DIAGRAM

S

 & WAVEFORMS ............

.

...........................................14

»

 SCHEMATIC DIAGRAMS ................................................................................................................... 15

»

 PRINTED WIRING BOARD ASSEMBLIES ........................................................................................ 22

»

 PARTS LIST ........................................................................................................................................ 27

»

 PACKING OF THE SET ...................................................................................................................... 3

6

CONTENTS

SPEAKER

SIZE .......................................................... 9 x 5 cm oval (2 pcs.)

VOICE COIL IMPEDANCE ............................ 16 ohm at 400 Hz

ANTENNA INPUT IMPEDANCE

VHF/UHF ..................................................... 75 ohm Unbalanced

TUNING RANGES

VHF-Channels ............................................................... 2 thru 13

UHF-Channels ............................................................ 14 thru 69

CATV Channels ........................................................... 1 thru 125

POWER INPUT ..................................................... 120V AC, 60 Hz

POWER RATING ................................................................... 1

30

W

PICTURE SIZE .......................................... 2,187 cm

2 

(339sq inch)

CONVERGENCE ............................................................. Magnetic

SWEEP DEFLECTION .................................................... Magnetic

FOCUS ............................................... Hi-Bi-Potential Electrostatic

INTERMEDIATE FREQUENCIES

Picture IF Carrier Frequency ...... 45.75 MHz (Analog Terrestrial)
Sound IF Carrier Frequency....... 41.25 MHz (Analog Terrestrial)
Color Sub-Carrier Frequency ..... 42.17 MHz (Analog Terrestrial)

 (Nominal)

AUDIO POWER

OUTPUT RATING .............. 3.0W + 3.0W (at 10% distortion and

Dual CH Operate)

Specifications are subject to change without
prior notice.

ELECTRICAL SPECIFICATIONS

MODEL

SERVICE MANUAL

27SC260R

COLOR TELEVISION

Digital Terrestrial Broadcast (VHF/UHF) .......................2 thru 69

Chassis No. 

GB-3D(1W)

IF Center Frequency ........................ 44 MHz (Digital Terrestrial)

(EIA, Channel Plan U.S.A.)

27SC260R